Home / 99,901.28-149,851.92-40,741.58

Finding the Fourth Proportional to 99,901.28, 149,851.92 and 40,741.58

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Solution

The fourth proportional to 99,901.28, 149,851.92 and 40,741.58 is: 61,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,901.28 : 149,851.92 = 40,741.58 : x
  2. Step 2: Convert to fraction form
    99,901.28/149,851.92 = 40,741.58/x
  3. Step 3: Cross multiply
    99,901.28x = 149,851.92 × 40,741.58
  4. Step 4: Simplify right side
    99,901.28x = 6,105,204,514.24
  5. Step 5: Solve for x
    x = 6,105,204,514.24/99,901.28
  6. Step 6: Final answer
    x = 61,112.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.